Published on: 2026-10-27
(COM),If no
mA 1 ●
Detection Time
open
1 ○ U0-14 Hand input
2:By Press. 3:By current &
DI2 and GND
DI3 and GND
1:Terminal
A-51 Back Electromotive Force
(slave comm.2)
U0-13
Detection
DI1 Multi functional
contrary,decrease
1: ON
command
0 ●
Initialization 0-9999 0 ●
10:fault input
Description Set range Unit Default Modification
0-10.0 Bar 0.5 ○ The larger the
0: (0-10)
start pressure
2
frequency
6: PID pause
Frequency
0: No function
Code
Value
has issue
Frequency For
0.1-999.9 S 50.0 ○ U1-04
the factor
Value
15 / 21
disconnected,water
2. Check the sensor
delay
value
5: Zero
Frequency For
Pressure
2: Forbidden
A ○ Applicable for
E-30 Contactor fault
0.0-3600.0 s 0.0 ○ U2-18
1:Forward
parameters
Water Shortage
)
1 ●
1 ○ U0-12 Auto-start
5: (4-20mA or 0- 10v),changed by
Alarm Value
option when
controller(4- 20mA)
3. Set sensor properly
Value
over set
running
2. Self-learning with load
frequency
modifying the
1: (4-20)
running
factory setting
appears frequently
water shortage
DI3,then use
actual
Time
2:Communication
1. Check the sensor
frequency
shortage alarm will
overload
1: C terminal
2:Command
can be changed
Function
U0-04 Sensor range 0.0-60 Bar 10 ○ U0-05
3-60000 Min 1500 ○ U1-11
Depending on
7:Upper limit
0:U0-14
0.00-20.00 20.00 ○ U2-08
Pressure
Pressure
frequency.rated speed. 2. Remove load when
(U2-12=0,U2- 11=11)
0: No function
11 ● U2-14 Mo output
0.0-100 80% ○ U0-22
U1-03
1.Input & output is wired
interference
GND are
0 ○ U0-11
(0~200) 100 ○ Display pressure
1. Check wiring
3-6000 S 30 ○ U0-08 Sleep
5:Reset
cose is chosen
time
When D11 and
U0-00 Pressure set 0.5~60 Bar 3.0 ○ U0-01 Start pressure
0: Stop by
deceleration
Anti-Freezing
Mode
leakage,the
Frequency
calibration
2:Communication
delay
1 ○ TA1 /TB1 normal
U2-26
(TA,TB,TC) 2 ○ TA /TB normal
U0-02
Frequency
restart
0: Invalid
the screen. U2-11
press. 4:Water shortage
Frequency
“◎”: The parameter is the actual detected and recorded value which can’t be modified. U0 Basic Function Parameters Group
factor
Water Shortage
controlling
U1-05 High Pressure 0-60.0 Bar 15.0 ○
keypad
Description Set Range Unit Default Modification
Improper operation caused
U2-17 Valid DI1 input
shortage input
9: Command by
running
0.0-100.0 % 0.0 ○ U2-07 Max.Input C
Detection Time
input delay
the factor,on the
Note
1:PID
0.00-100.00 Hz 30.00 ○ U1-13 Times of alarm
V
0.00-20.00 4 ○ U2-06
Value
be displayed on
0.0-3600.0 s 0.0 ○ U2-19 Valid DI2 input
E-28 Interference
than PID set
0.0-100.0 % 0.00 ○ U2-02 Max.Input V
10: Reach
8:Standby
9:Sleeping
Check power or ask factory
power on
3. The motor inertia causes
U1-06
terminal
1:Reverse
Parameters
time
5: C1 is 4-20mA
Function
Water Shortage
11: Water
For High
Frequency
1: Restart when
Direction
Code
frequency
3.external
running
5.C1 (4-20mA)
6:Lower limit
0: Do not detect
DI2 Multi functional
auto reset 0-1000 200 ○ U1-14 Alarm auto reset
Pressure Alarm
Data transmitting and
Of Maintaining
0:Forward
0.0-100.0 % 100.0 ○ U2-04 V Filter Time
given
For Low
U0-03 Sensor
for help
the motor
Constant 0.01-10.00 s 0.05 ○ U2-10
control
Water Shortage
Max.Input C
Level
4:FDT2
controller (0-10v)
U2-12
standby when
Shortage Input
eliminate the surrounding
7:Command by
5.00-50 Hz 0 ● U0-18 Acceleration
Delay Time For
Input Terminal
E-27 Rs485 fault
Corresponding
pressure,increase
2.2kw C1=0-10V
pressure is lower
Frequency For
0-60000 Min 10 ○ U1-15 Alarm reset
0:keypad
Min.Input C
pressure
3:Fault input
Level Note
open
1. Wrong motor parameters
Refer to E-18
Low Pressure
18 / 21
1:ON
leads to the low speed of
Relay2
U2-00 Min.Input V
Function
Running
0-60.0 Bar 0.5 ○ U1-02
for 4kw, below
Input Terminal
Value
Detecting
U0-07
0: OFF
22:Remove faults
Min.Input V
Description Set range Unit Default Modification
0.1-6000 S 4.0 ○ U0-19 Deceleration
feedback type
0 ○ U0-21 Percentage of
is lower than
2:fault
4.external
closed, TA/TC
Factor
frequency is
Running Time
when constant
16 / 21
Input Terminal
Parameters Setting Table
Alarm Value
or stopped by
Water Shortage
It occures when E-18
11: Reset to
motor type
Invalid DI1
0.1-6000 S 4.0 ○ U0-20 Stop Method
Float switch is
0-60.0 Bar 0 ○ U1-08
(TA1,TB1,TC1
Pressure Alarm
Constant 0.01-10.00 s 0.05 ○ U2-05 Min.Input C
17 / 21
3:FD
0.0-200.0 S 3.0 ○ U1-07
3. Wrong sensor setting
Options
serial communication
0.00-10.00 10.00 ○ U2-03
0.00-10.00 0.00 ○ U2-01
Code
temp.
0: V terminal
when running
delay
bigger the value
0.00-200 Hz 50.00 ○ U0-15 Max.Frequency 5.00-200 Hz 50.00 ● U0-16 Upper limit
1: Free-run Stop
Frequency 0.00-100.0 Hz 45.00 ○ Only detecting
U1-00:1&3
Detecting
Running
self-learning
0-6000 S 10 ○ U1-12
E-29 Buffer resistance is
1 ○ U1-10 Running cycle
reverse 2.Power or driver
Corresponding
0.0-100.0 % 100.0 ○ U2-09 C Filter Time
Function
set 0-U0-00 Bar 2.4 ○ Wakeup from
properly like rated
Corresponding
U0-10 Start and Stop
Level Note
U1-01
frequency
Detection Time
Current For
U1-00
111 ● U2 Input & Output Parameters Group
running
status
Lower limit
U2-16
Note: “○”:The parameter can be modified in both standby and operating status. “●”: The parameter can’t be modified in operating status
communication
DI3 Multi functional
0 ○ Rotation direction
Max.Input V
closed, TA1/TC1
for anti-freezing
For Anti- Freezing
2:Reverse
Power is on
8: Command by
mA
0:OFF
receiving mistakes under the
1 ○ U2-15 Relay1
4:Haste stop
1. Set motor parameters
4. Motor demagnetization
Frequency For
incorrect identification
self-learning starts. 3. Set U3-59 according to
Value
Value
11: Water
2. Contact manufacturer
0.00-100 Hz 30.00 ● U0-09 Water leakage
Use absorption circuit to
Detection
Detecting
connected to
U1 Pump Parameters Group
Auto restart
1: running
by the surrounding EMI
1:By current
5.00-200 Hz 50.00 ● U0-17
0.1-100.0 S 10.0 ○
0.0-6000.0 S 60.0 ○ U1-09 Anti-Freezing
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-
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Email: qinmao@qinmaocrane.com
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